Enhance test Rakefile with better gen control. Default still tests everything, but can now `rake mrc` only or `rake arc` only or even `rake mrc clean`.
Update Test README
Fixes #15: failed assertion 'relationship': fetch requests with substitution variables. Tests passing.
[FIX] FoundationAdditions are part of MiscMerge.
Update header style and copyright dates.
Specifically suppress setPrimitiveType: generation -- apparently it triggers Apple's piss-poor private-API-use detector when submitting to the App Store. Closes #16.